506 Lxix. RUBiACEiE. \Tardavel 



puberulous, exserted ; stigma sub-capitate ; ovary 2 -celled ; ovules 

 solitary. 



HuiLLA. — In exposed sandy places in the more open forests, near 

 the lake of Ivantala; fl. end of Feb. 1860. No. 3228. Differs from T. 

 arvensis by its shorter flowers, cartilaginous and thickened leaf-margin. 



7. T. andongensis Hiern, sp. n. 



An erect annual herb, 5 to 20 in. high, simple or dichotomous 

 with sub-erect or ascending branches; stem and branches sub-terete, 

 purplish below, leafy and hirsute with spreading whitish hairs or 

 sub-glabrous above ; leaves narrowly linear acute and apiculate at 

 the apex, somewhat narrowed gradually towards the base, sessile, 

 scabrid, rigid, green above, pallid beneath, uni-nerved, 1| to 3 in. 

 long, erect-patent on the uppermost ones spreading ; margin rather 

 thickened, cartilaginous, whitish or scabrid ; stipules adnate to 

 the bases of the leaves and so sheathing, hairy outside, glabrous 

 inside, terminating at the truncate apex with several filiform 

 elongated setse ; flowers ^ in. long, sessile, crowded in sessile 

 terminal and subterminal hemispherical or ovoid bracteolate 

 heads ; bracteoles lanceolate- subulate, falling short of the calyx- 

 limb ; heads based by approximated pairs of leaves and their 

 sheathing stipules, and thus involucrate ; calyx | in. long ; the 

 tube short, puberulous ; the limb bipartite ; the segments equal, 

 lanceolate-subulate, puberulous outside, glabrous inside, ciliate ; 

 corolla not exceeding the calyx-limb, fvmnel-shaped ; the tube 

 glabrous ; throat naked ; the lobes 4, lanceolate, nearly glabrous, 

 about half as long as the tube, valvate in the bud, incurved, 

 apiculate at the apex ; stamens 4, glabrous, exserted ; style 

 minutely puberulous, exserted ; stigma sub-capitate. 



PuNGO Andongo. — In meadows with short herbage on the right 

 bank of the river Cuanza near Sansamanda ; fl. and young fr. April 

 1857. No. 3242. In sandy pastures with scanty herbage by the road- 

 side from the prsesidium towards Cambumbe; sparingly in fl. April 1867. 

 No. 3243. 



Nearly allied to T. radiata {Borreria radiata DC), it differs by 

 smaller flower-heads, only 2 calyx-lobes, etc. 



8. T. lancea Hiern, sp. n. 



A hirsute-scabrid, dichotomous, erect, annual herb, 3 to 9 in. 

 high ; stem and branches rather slender, often reddish, more or 

 less scattered with rather long whitish spreading rigid hairs ; 

 middle internodes about equalling the leaves, the upper ones 

 shorter ; leaves opposite, lance-shaped, sessile, grey-green, 

 scattered with hispid whitish hairs above, uni-nei-ved, | to | in. 

 long by ^ to I in. broad ; the midrib depressed on the upper face 

 of the leaves, raised and scattered with hispid whitish hairs 

 on the lower face ; margins cartilaginous, whitish, thickened ; 

 stipules adnate to the bases of the leaves, truncate, terminating 

 with elongated filiform setse, the uppermost ones basing the 

 inflorescence larger, hispid outside, glabrous and shining inside ; 

 flowers 5 in. long, sessile, crowded in small ovoid bracteolate 

 terminal and subterminal sessile heads, tetramerous; bracteoles 



